Pulp-mill apparatus.



J. H. WALLACE. PULP MILL APPARATUS. APPLIQATION FILED APR. 19, 1911Patented Jan. 7, 1913.

2 SHEETS-SHEET 1.

ATTORNEY J. H. WALLACE. PULP MILL APPARATUS. APPLICATION FILED APR. 19,1911.

Patented Jan. 7, 1913.

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mwwiw NA 5% INVENTOR H ATTORNEY JOSEPH H. WALLACE, OF NEW YORK, N. Y

PULP-MILL APPARATUS.

Specification of Letters Patent.

Patented Jan. 7, 1913.

Application filed April 19, 1911. Serial No. 621,980.

To all whom it may concern:

Be it known that I, JOSEPH H. WALLAcE, a. citizen of the United States,and a residentof the borough of Manhattan, in the city, county, andState of New York, United States of America, have invented certain newand useful Improvements in Pulp-Mill Apparatus, of which the followingis a specification.

My invention relates to pulp mill. apparatus, and its object is toprovide powerdriven machinery for performing certain parts of theprocess of manufacturing paper pulp which have hitherto been done bymanual labor, and to provide intermediate mechanisms and automaticdevices in conjunction with and in definite relation to such machines ashave heretofore been known in this art by means of which they may bemore efl ectively associated with each other and their use greatlyfacilitated.

I will describe my invention in the following specification and pointout the novel features thereof in the appended claims.

Referring to the drawings, Fi ure 1 is a side elevation of a wet machineor making paper pulp, together with a pulp cutting and folding machine.This figure also shows an end view of a tilting table of novelconstruction, and a portion of a conveyer in section.. Side elevationsof the tilting table and the conveyer are shown in Figs. 2 and 3. Thesefigures show the tilting table in difi'erent positions, and illustrateits operation. F i 4'is a plan view of a plurality of units sue as areshown in Fig. 1, and shows the positions in which they are placedrelative to one anotherand to a belt-conveyor which is also shown inthis figure. In Fig. 5 the same conveyer is shown in plan view togetherwith another parallel conveyor, and between them are shown variousdevices placed in definite relations to the conveyers and to one anotherfor a purpose which will appear-hereinaf'er. Fig. 6 is a side elevationof some of thedevices which are shown in Fig. 5, and Fig. 7 is a similarView of some other devices which are shown in Fig. 5.

Like characters of reference designate corresponding parts in all of thefigures.

1 10 designates a pulp machine of the usual wet types .11 isthereceptacle for the wet pulp stock, and 12 is a rotary cylinder whichpicks it up and deposits it upon the endless felt 13 which runs over aroller 14 on the end of a pivoted arm 15. 20 is a over a roller 23 ontoa shelf 24.

' abl pulp sheet cutting and folding machine of a standard construction.The felt 13 runs through this machine, and the pulp upon it becomescollected upon a roller 21. As soon as a suflicient amount of the pulphas accumulated upon this roller a knife 22 descends and cuts andscrapes it oil". The pulp sheet, guided by the knife, then runs Then ablade 25 descends and forces the central portion of the pulp sheet downbetween rollers 26, one of which is positively driven so that the foldedsheet is discharged from the machine through a slot 27 over a deflectingapron 28. These mechanisms are described but briefly as they form nopart of the present invention. They are also illus-' trated more or lessdiagrammatically, and many of their parts are not shown. Heretofore ithas been customary to collect by hand the folded pulp sheets thus formedand to carr them to other devices where they are sub ected to furthertreatment, thus entailing a large amount of manual labor." I have,iowever, invented the arrangement of parts herein shown for the purposeof facilitating the process of treating the pulp sheets, formed as abovedescribed, and reparing them for delivery or shipment. he tilting table30 which is shown In the dr'awings is so placed that the pulp sheets aredischarged upon it. Each of these tables comprises a stationary frame 31near the upper portion of which is pivoted the table top 32 .which isflanged along its longitudinal edges as at 33. The table topprefercomprises a plurality of transverse r01 ers 34:, and is affixed toa shaft 35 at one side ofits center of gravity and is held in itshorizontal position against a fixed stop 36 by an adjustable weight 37.

38 is a sector afiixed to the shaft 35. From a portion of this sectorprojects a concentric friction member 39 of some soft resilient materialsuch as rubber.

40 is an actuating arm which is pivoted in the frame 31 at 41. Aweighted lever holds this arm against a fixed stop 43.

44 is a sector which is referably an integral part of the arm 40 a oveits pivot 41. The curve of this sector is such as to allow it to swingfreely under the sector 38.

The weight 36 may be so adjusted that pul sheetshave" beendischarged'onto the tab e top 32 the latter will swing into the when oneor any other desired number of position in which it is indicated by thedotted line at 32 in Fig. 2. This will bring the friction member 39 intoengagement with the sector 44 so that it will arrest the movement of thetable top. Now, however, when the actuating arm 40 is moved, the sector44 which has comeinto engagement with the friction member 39, will causethe table top to be tilted into the position in which it is shown inFig. 3. Its movement in this direction is limited by stops 45.

50 designates a belt conveyer which runs under the tables 30 and overrollers 51 and 52 at its opposite ends, and is supported by intermediaterollers 53, and 54. Movement is imparted to the belt by the roller 52which is motor driven.

55 is a tripping device afiixed to the upper surface of the belt 50 andso arranged that be seen.

it will engage the lower end of the arm 40 to tilt the table in themanner described so that the pulp sheets upon the table will slide offonto the conveyer. The conveyer belt may be placed higher so that thepulp sheets from the machine 20 will be discharged directly onto it, butit is preferable to use the device shown as the pulp sheets are not thensubjected to any strains. Each tripping device comprises a weighted body56, from one side of which extends an arm 57 which is pivoted to thebelt 50 transversely to its direction of movement. When these trips come,up over the roller 51, their arms 57 become engaged by a fixed abutment58 and the weighted bodies become thrown over thereby into the positionshown in Fig. 2. When in this position they are high enough above thesurface of the belt to engage the arms 40. The bodies 56 are heavyenough to remain in this position when they merely swing the arms 40idly. But if the movement of the arm actuates the table, the added loadthus put upon the arm is sufiicient to swin the weighted body 56 backinto the osition in which it is shown in Fig. 3.

n this position it is too low to touch the arms 40. y

Referring now to Fig. 4, the manner in which this arrangement is to beused may Here six units placed side by side are shown, each of whichconsists of a wet machine, a pulp sheet cutting and folding machine, anda tilting table. The conveyer belt runs under all of the tilting tables.The

trips 55 are preferablyspaced at equal dis-- tances throughout theentire length of the conveyer belt along one of its edges. As thetripping devices 55 pass under the actuating arms 40 they merely swingthem over without further result until a table is reached which hasreceived its required number of pulp sheets. Such a table will be tiltedand the pulp thereon will slide onto the conveyer. At the same time thetripping device which did this will be the pulp which is on thrown overinto its inoperative position so that it will not tilt the next tableseven if they are already loaded. But the succeeding tripping device willtilt the next loaded table. The result of this will be that piles of thepulp, each with the same number 0 sheets therein, will be scatteredalong the conveyer, and these piles will not be nearer together than theinterval between the tripping devicesa The pulp sheets will then becarried along by the conveyer to the other devices by which they are tobe treated.

60 in Figs. 5 and 6 designates a rails along one side of the conveyerand parallel therewith. Spaced at intervals along these rails are theusual presses 61 61 61 and 61 for squeezing surplus water from the pulpsheets. 62 62, 62 62 62?, 62 62 and 62 are trucks upon the rails, onesuch being provided on either side of each press. 63*, 63*, 63, 63 and63 are stationary tables near the trucks. These tables are used tosupport the usual wire or felt separating mats. sheets come forward uponthe conveyer, an operator may pile them up upon the truck 62, placingbetween some of them, at desired intervals, the separating mats from thetable 63*. When the truck has received its desired load it may be runinto the press 61', subjected to its pressure, and allowed to remain inthe press. In the meantime, the truck 62 may be similarly loaded, andthen the trucks 62, 62 62*", etc. After the pulp sheets on the truck 62-have been sufficiently,

pressed in the press 61, the pressure may released and this truck runback to its first position. The loaded truck-62 may then be run into thepress 61*. In a similar manner the loaded trucks 62 and 62 may be runinto the press 61, and the other trucks on the rails 60 into theiradjacent presses. Another pair of rails is shown at 64 parallel withrails 60. These rails 64 run over scales 65, 65, 65 and 65 Trucks 6666*, 66

and 66 on these rails 64 are arranged to be moved alongside of thetrucks on track 60, or onto the scales or into the baling presses whichare designated in the drawings by 6'7 and 67. After the truck 62 hasbeen moved back out of the press 61 to its first position, an attendanttransfers the dry pulp sheets from it to the truck 66, taking out orseparat' the mats and laying them back upon the table 63. The truck 66is then run onto the scale 65 for the purpose of weighing it, afterwhich it is ress 67 A where it is 111130 bales. After the pressure isrelease and the truck 66 is run out of thepress, the finished bale isrun out onto the second conveyer 50 which carries it out to arailway-car 68, or to some other desired place for storage or forshipment.

run into the baling pressed and tied u pair of By this novel arrangementof the parts forming pulp sheets, of a power driven belt conveyer, atable positioned to receive the the number of attendants necessary forcarrying on this process of manufacture is reduced to a minimum. It willbe noted that 5 there are fewer presses for removing the water from thepulp sheets than there are wet machines in operation, and that there arefewer balin presses than there are other presses. All 0 the mechanismsare'placed in definite relation to each other, where they are accessibleto the attendants and are so arranged that the diflerent steps in theprocess of treating the pulp may be carried on with the greatest ease.The conveyer driving mechanism may be stopped at any time by theattendants as devices for this purpose may be placed where they arereadily accessible. The arrangements herein shown and described providemeans for transferring the pulp sheets through the mill during theprocess of manufacture without subjecting them while in their soft andeasily damaged condition to the rough treatment of being handled byattendants, does away with a large number of the help usually employed,and reduces the cost of manufacture to a minimum.

What I claim is L The combination with apparatus for forming pulpsheets, of a power driven conveyer, means automatically actuated by themovement of the conveyer for dumping said pulp sheets onto the uppersurface of theconveyer, and independent devices for subjecting the pulpsheets to desired treatment, said apparatus and devices being placed indefinite relation to the conveyer.

2. The combination with apparatus for forming pulp sheets, of a tiltingtable positioned to receive the pulp sheets from said apparatus, a powerdriven belt conveyer, and a tripping device on said conveyer arranged totilt said table to cause it to dis charge the pulp thereon onto theconveyer.

3. The combination with apparatus for forming pulp sheets, of a tiltingtable positioned to receive the pulp from said apparatus, a power drivenconveyer under said table, and a tripping device on said conveyerarranged to tilt said table to cause it to dischar e the pulpthereononto the conveyer in t e direction of the conveyers travel.

4. The-combination with apparatus for forming pulp sheets, of a powerdriven conveyer, a table positioned to receive the pulp from saidapparatus, mechanism for tilting said table to cause it to discharge thepulp thereon, onto the conveyer, and a tripping device on the conveyerarranged to cause the movement of the conveyer to actuate said tiltingmechanism, said table comprising means for rendering the tiltingmechanism inoperative vexcept when there is a desired a5 amount of. pulpupon it,

5. The combination with apparatus for pulp from said apparatus, a pivotfor the table at one side .of its center of gravity,

mechanism for tilting said table about its pivot to cause it todischarge the pulp thereon onto the conveyer, a tripping device on theconveyer arranged to cause the movement of the conveyer to actuate saidtilting -mechanism, said table comprising an adjustable weight arrangedto render the tilting mechanism inoperative except when there is adesired amount of pulp upon it.

6. The combination with apparatus for forming pulp sheets, of a powerdriven conveyer, a table positioned to receive the pulp thereon onto theconveyer, said tilting mechanism comprising an actuating arm pro--je'cting toward the conveyer, and a member arranged to be engaged by aportion of said arm; a trippingdevice upon the conveyer arranged tocause the movement of the conveyer to be imparted to the actuating arm,

and an adjustable weight on the table arranged to hold said member outof engagement with the actuating arm until a desired amount, of pulp hasbeen discharged onto the table.

7. The combination with apparatus for forming pulp sheets, of a powerdriven conveyer, a table positioned to receive the pulp from saidapparatus, a pivot for the table at one side of its center of gravityand transverse to the movement of the conveyer, mechanism for tiltingsaid table about its pivot to cause it to discharge the pulp thereononto the conveyer, said tilting mechanism comprising an actuating armprojecting toward the conveyer, a sector connected with the arm, and afriction member on said shaft arranged to be engaged by the sector; atripping device upon the conveyer arranged to causethe movement of theconveyer to be imparted to the actuating arm and its sector, and an ad;justable weight upon the table arranged to hold the friction member outof engagement with said sector until a desired amount of pulp has beendischarged onto the table.

8. The combination with a plurality of units of apparatus placed side bside for forming pulp sheets, of a power riven belt conveyer having itsdirection of movement transverse to that of units, means automaticallyactuated by the movement of the conveyer for discharging the pulp sheetsonto the conveyer, and devices for subjecting the pulp sheets to desiredtreatment,

- 'pulp thereon onto the conveyer,-

of apparatus placed side said units and devices being placed in definiterelation to the conveyer.

9. The combination with a plurality of independent units of apparatusfor forming pulp sheets, of a conveyer arranged to receive the pulp fromsaid units and to carry it to a plurality of points away from the units,and means for causing the pulp from the units to be delivered from theconveyer successively and in definite quantities.

10. The combination with a plurality of units of apparatus for formingpulp sheets, a device; opposite each unit for receiving the pulptherefrom, a power driven con- .veyer for continuously carrying the pulpforward as delivered, and means automatically actuated by the conveyerfor releasing the receiving devices after intervals of time anddumpingthe pulp thereon' onto the conveyer in definite quantities.

11. The combination with a lurality of units of apparatus placed side yside for forming pulp sheets, of a power driven belt conveyer having itsdirection of movement transverse to each unit positioned to receive thepulp from said unit, and means for tilting said tables, one at 'a time,to cause them to discharge the pulp thereon onto the conveyer.

12. The combination with a lurality of units of apparatus placed sideside for forming pulp sheets, of a power riven belt conveyer having itsdirection of movement transverse to saidiunits, a table for each unitpositioned to receive the said unit, each table comprising mechanism fortilting it to cause it to discharge the pulp thereon onto the conveyer,and a plurality of tripping devices on the conveyer arranged to causethe movement of theconveyer to actuate the tilting mechanism of thetables at intervals. L

13. The combination with a side for of a power riven belt direction ofmovement transverse. to said units, a table for each unit positioned toreceive the pul from said unit, each table com risinig mec anism fortilting it to cause it? to ischarge the a plurality oftripp' devicesonthe conveyer, means for throwing the tripping devices into operativeition that it may cause the moveplurality of forming" pulp sheets,conveyer having its table arranged to'render its tilting mecha;

nism inoperative-except when there isa deamount of pulp upon it; 14. Thecombination with a p)urality of units of ap aratusplaced side side for06 forming p p sheets, of a power riven belt said units, a tilting tablefor pulp from 'ing the pulp into press;

'baling press, a truck u one 0 said ment 0 the conveyer to actuate thetiltingof one of the tables, means 'forconveyer having its direction ofmovement transverse to said units, a table for each unit positioned toreceive the pul from said unit, each table having a sha transverse tothe direction of movement of the conveyer at one side of the center ofgravity of the table and comprising mechanism for tilting the tableabout its shaft to cause it to discharge the pulp thereon onto theconveyer, said mechanism comprising an actuating arm projecting towardthe conveyer, a sector connected with said arm, and a friction member onsaid shaft arranged to be engaged by the sector; an adjustable weight oneach table arranged to hold its friction member out of engagement withsaid sector until a desired amount of the pulp has been delivered ontothe table; and a plurality of tripping devices on the conveyer spaced atintervals along the length thereof, arranged to cause the movement ofthe conveyer to be imparted to the actuating arms of the tables.

15. The combination with apparatus for forming pulp sheets, of a-powerdriven conveyer arranged to receive the pulp, a truck at a distance fromsaid a paratus for receiving the pulp, a press or receiving the truck,and its load; a second truck located alongside of the first truck forreceiving the pressed pulp, a baling press for receiving said secondtruck and its lead, and another conveyer for carrying the baled pulp toa point of delivery.

16. The combination-with apparatus for forming'pulp sheets, of a powerdriven conveyer arranged to receive the pulp, a press adjacent to theconveyer, a pair of trucks for taking the pulp into said press; a balingpress, a truck arranged to be moved alongside of-eit-her one of saidpair of trucks for taking the pulp into the baling press and anotherconveyer for carrying the pul to a point of delivery.

1?. The combination with apparatus for forming pulp sheets, of a powerdriven conveyer arranged to receive the pul a press adjacent to theconveyer, a tree with the conveyer upon said track or talka balingpress,

through the n sai second track arra ed tobe mov alongside of either pairof trucks for taking the pulp into the baling press; and anothereonveyer parallel with the first conveyer for carrying the-baledjpulp toa point of delivery. Y

.18. The

a second parallel track combination with a plurality of ,units of'apparatus'fonforming pulp sheets,

press, a pair of trucks fior each press bearallel baled tween the tablesand the presses for taking the pulp into the presses; one or more balingpresses, and a truck for each baling press, said baling press truck 01'trucks being arranged to be brought alongside of the other trucks; aweighing scale for each baling press truck, and another conveyer forcarrying the baled pulp to a point of delivery.

'19. The combination with a plurality of units of apparatus for formingpulp sheets, of a device for each unit positioned to receive the pulp,means operated by the conveyer for discharging the pulp onto theconveyer from said devices at intervals when a desired quantity of pulphas heen received on said devices, a power driven helt conveyer arrangedto receive the pulp from all of said devices, a plurality of presses adjacent to said conveyer, a track parallel with the conveyer runningthrough the presses, a

pair of mat-sustaining tables for each press, a pair of trucks for eachpress upon said track between the tables and the presses for taking thepulp into the presses; one or more baling presses, a second paralleltrack running through the haling ress or presses, a pair of trucks forsaid ha ing press upon said second track, said baling press trucksbeing-arranged to he brought alon side of the other trucks, a weighingscale or each haling press truck in said second track,

and another conveyer parallel with the first conveyer for carrying thebaled pulp to a point of delivery.

In testimony whereof I have sighed my name to this specification in thepresence of two subscribing witnesses.

JUSEPH WALLACE. Witnesses:

ELLA Larson,

"l a: B.

